public inbox for gdb-patches@sourceware.org
 help / color / mirror / Atom feed
From: Gary Benson <gbenson@redhat.com>
To: gdb-patches@sourceware.org
Subject: [OB PATCH] Fix NULL pointer dereference
Date: Thu, 09 Feb 2017 15:39:00 -0000	[thread overview]
Message-ID: <1486654779-20073-1-git-send-email-gbenson@redhat.com> (raw)

This commit fixes a segmentation fault on tab completion when
certain debuginfo is installed:

  https://bugzilla.redhat.com/show_bug.cgi?id=1398387

gdb/ChangeLog:

	* symtab.c (add_symtab_completions): Prevent NULL pointer
	dereference.
---
 gdb/ChangeLog | 5 +++++
 gdb/symtab.c  | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/gdb/symtab.c b/gdb/symtab.c
index 356f480..2c141e5 100644
--- a/gdb/symtab.c
+++ b/gdb/symtab.c
@@ -5163,6 +5163,9 @@ add_symtab_completions (struct compunit_symtab *cust,
   struct block_iterator iter;
   int i;
 
+  if (cust == NULL)
+    return;
+
   for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++)
     {
       QUIT;
-- 
1.8.3.1

             reply	other threads:[~2017-02-09 15:39 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-09 15:39 Gary Benson [this message]
2017-02-09 18:33 ` Pedro Alves
2017-02-10 11:19   ` Gary Benson
2017-02-10 12:58     ` Pedro Alves
2017-02-13 12:10       ` Gary Benson

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1486654779-20073-1-git-send-email-gbenson@redhat.com \
    --to=gbenson@redhat.com \
    --cc=gdb-patches@sourceware.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).